Apparatus for the chemical purification of oils and the like.



J. FISCHER.

APPARATUS FOR THE CHEMICAL PURIFICATION OF OILS AND THE LIKE.- APPLICATION FILED JULY 31, 1905.

PATENTBD FEB. 4, 1908.

INVENTOI? UNITED STATES PATENT OFFICE.

JOSEF FISCHER, OF VIENNA, AUSTRIA-HUNGARY.

APPARATUS FOR THE CHEMICAL PURIFICATION OF OILS AND THE LIKE.

Specification of Letters Patent.

Patented Feb. 4, 1908.

Application filed July 31- 1905\ Serial No. 2711932.

' oils with any one of the known purifying substances, such as sulfuric acid, soda lye and the like. The oil-to be purified is conducted in the apparatus through the purifying medium from the lower part to the up or part and passes through the purifying me ium for the minute distribution of the oil through a number of superposed screens or perforated partitions.

The new feature of the apparatus consists in arran ing the screens of perforated partitions wit a circumferential upwardly extending rim, which is raised above the level of the purifying liquid column, whereby the purifymg vessels are so arranged that the screens are inserted telescopically one Within the other. By this arrangement the tight fitting of the screens or wal s from the wall of the purifying vessel proper is dispensed with, the

res onding parts.

escape of unused portions of the purifying medium prevented, and the easy removal and cleaning of the distributing devices rendered possible.

In the accompanying drawing, Figure 1 is a vertical central section of my improved apparatus for the chemical purification of oils and Figs. 2 and 3 are detail plan views of the two uppermost distributers provided with perforated walls.

Similar reference characters indicate cor-\ he apparatus comprises a'vessel 1, which is prefer-a ly made of circular cross-section, and provided at the upper end with a discharge-tube 2 for the purified oil. The vessel 1 is closed by a cover 3, which is provided with a pipe 4 for conductin off the gas or vapors generated in the vesse 1 The upper open end of the pi e 4 terminates above the level of the tank w ich contains the oil to be purified. I The oil to be purified is supplied om the tank through a supply-pipe 5 arranged at the lower part of the vessel, continuously into the latter, and is discharged through the ipe 2 at the upper end of the same. The iquid purifying medium runs continuously through a bent pipe 6 located at the upper art of the vessel 1, through the same, and eaves through a ooseneck pipe 7 arranged at the lower part ofthe same.

In the vessel 1 is arranged any suitable number of horizontal walls 8, 9, 10, 11, 12

and 13, whose diameters gradually diminish from the lower partition-wall towards the upper one, so that the partition 8 is the largest and the partition 13 the smallest. The walls 9, 10, 11, 12 and 13 are provided with holes 1'4, which are preferably staggered relatively to the perforations of the adjacent partitions. Each one of the walls 8 to 13 is provided with a downwardly bent circumferential flange 15 and an upwardly extending continuation 16 of the same. The

two flanges of each perforated wall form a cylindrical body which is divided by the perforated partition-wall into a lower smaller and an upper larger space. The holes 14 are so arranged that theyare always located withinthe circumferential flange 15 of the next higher partition. The flange 15 of the lowermost artition-wall 8 rests on the bottom 17 of t e vessel ,1, while the flange 15 of the remaining perforated wall rests on the circumference of the next lower wall, so that the perforated walls are at a distance from each other corresponding to the height of the flange 15. In this manner the cylinders which are formed by the two flan cs 15, 1.6, of each The circumferential flange 16 is highest for the lowest partition-wall and is gradually diminished with the other partition-walls for the height of the flange 15, plus the thickness erforated partition-wal are arranged te escopically one within the other.

of thewall, so that the upper edges of the A flanges 16 are in one plane and extend above the level of the column of purifying li uid.

At the beginning of the operation t e vessel 1*has to be filled up to the height of the gooseneck pipe 7 with the purifying medium, so that the same is on a uniform level in all the cylinders formed by the flanges 16.

The urifying medium is supplied continuously through the bent pipe 6 into the space inclosed by the flange 16 of the uppermost partition-wall 13, and then passes within the cylinders through the erforations 14 in a serpentine course in ownward direction,

while simultaneously the oil which is conclaim as new and desire to tinuoiisly supplied to thespace between the walls 8 and 91s conducted in the same course through the perforations 14 in an upward direction in a current opposite to that of the purifying medium. The escape of oil between two adjacent cylinders is prevented by the arrangement of the holes 14 hereinbefore described. It is referable to makethe perforated walls slig tly convex, so that in the angle formed between the flanges 15 and each wall a liquid seal is formed for the oil by the urifying liquid.

, aving thus described my invention, I secure by, Letters Patent:

1. Ana paratus for the chemical purification of 0'1 s, comprising a vessel provided with a supply-pipe at the upper part and a gytgoseneck ipe at the lower part for the purin disc be purifie a" cover provided with an outletpipe for the escape of the gases, and a numer of superposed perforated partitions or screens provided wlth downwardly extending circumferential flanges and upwardly extending cylinders in line therewith which form a cylindrical mantle for eaclrwall,

liqui a supply-pipe at the lower and a argeipe at the upper end for the-oil to which are placed telescopically one within the other.

2. An apparatus for the chemical purification of oils, comprising a purifying vessel and a number of interior perforated partitionwalls of gradually diminishing diameter, and provided with downwardly extending flanges and upwardly extending cylinders in line With said flanges.

3. An a paratus for the chemical purification of oi s, com rising a purifying vessel, and a number of interiorperforated partition-walls provided with downwardly ex tending flanges and cylindrical extensions in line therewith, said partition-walls being made with gradually diminishing diameter.

and provided with perforations within the flanges of the next adjacent partition-walls,

the flanges of the cylinders being located telescopically one within the other, and the. 1 up er ends being arranged at the samelevel.

' n testimony that I claim the foregoing as my invention, '1 have signed my name in pres-' ence of'two subscribing witnesses.

I JQSEF FISCHER.

Witnesses: w

' ALFRED KLor,

Anvns'ro S. HOGUE 

